Anti-Lock Brake System (For Hatchback) Terminals Of Ecu
TERMINALS OF ECU
TERMINAL INSPECTION
Anti-Lock Brake System (For Hatchback) -- Terminals Of Ecu |
Text in Illustration*a
| Component without harness connected
(Skid Control ECU (Brake Actuator Assembly))
|
Terminal No. (Symbol)
| Terminal Description
|
A71-1 (GND1)
| Skid control ECU ground
|
A71-4 (RL-)
| Rear wheel speed LH (-) signal input
|
A71-5 (RL+)
| Rear wheel speed LH (+) power supply output
|
A71-6 (FR-)
| Front wheel speed RH (-) signal input
|
A71-7 (FR+)
| Front wheel speed RH (+) power supply output
|
A71-12 (+BS)
| Solenoid relay power supply
|
A71-13 (GND2)
| Pump motor ground
|
A71-14 (CANL)
| CAN communication line L
|
A71-16 (RR-)
| Rear wheel speed RH (-) signal input
|
A71-17 (RR+)
| Rear wheel speed RH (+) power supply output
|
A71-18 (FL-)
| Front wheel speed LH (-) signal input
|
A71-19 (FL+)
| Front wheel speed LH (+) power supply output
|
A71-22 (SP1)
| Speed signal output for speedometer
|
A71-24 (+BM)
| Motor relay power supply
|
A71-25 (CANH)
| CAN communication line H
|
A71-28 (STP)
| Stop light switch input
|
A71-34 (IG1)
| ECU power supply
|
|
Disconnect the connector and measure the voltage or resistance on the wire harness side.
- HINT:
- Voltage cannot be measured with the connector connected to the brake actuator assembly (skid control ECU) as the connector is watertight.
Text in Illustration*a
| Front view of wire harness connector
(to Skid Control ECU (Brake Actuator Assembly))
|
Standard:Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
A71-1 (GND1) - Body ground
| W-B - Body ground
| Skid control ECU ground
| Always
| Below 1 Ω
|
A71-12 (+BS) - Body ground
| W - Body ground
| Solenoid relay power supply
| Always
| 11 to 14 V
|
A71-13 (GND2) - Body ground
| W-B - Body ground
| Pump motor ground
| Always
| Below 1 Ω
|
A71-24 (+BM) - Body ground
| B - Body ground
| Motor relay power supply
| Always
| 11 to 14 V
|
A71-25 (CANH) - A71-14 (CANL)
| G - W
| CAN bus
| Ignition switch off
| 54 to 69 Ω
|
A71-28 (STP) - Body ground
| P - Body ground
| Stop light switch input
| Stop light switch on → off
(Brake pedal depressed → released)
| 7.5 to 14 V
→ Below 1.5 V
|
A71-34 (IG1) - Body ground
| L - Body ground
| ECU power supply
| Ignition switch ON
| 11 to 14 V
|
